DS3170N+ Maxim Integrated Products, DS3170N+ Datasheet - Page 59
DS3170N+
Manufacturer Part Number
DS3170N+
Description
IC TXRX DS3/E3 100-CSBGA
Manufacturer
Maxim Integrated Products
Datasheet
1.DS3170.pdf
(230 pages)
Specifications of DS3170N+
Function
Single-Chip Transceiver
Interface
DS3, E3
Number Of Circuits
1
Voltage - Supply
3.135 V ~ 3.465 V
Current - Supply
120mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
100-LBGA
Includes
DS3 Framers, E3 Framers, HDLC Controller, On-Chip BERTs
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power (watts)
-
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Table 10-4. Source Selection of TCLKO (Internal Tx Clock)
Figure 10-3
Figure 10-3. Internal Rx Clock
Table 10-5
Table 10-5. Source Selection of RCLKO Clock Signal (Internal Rx Clock)
10.2.3 Line IO Pin Timing Source Selection
The line IO pins can use any input clock pin (RLCLK or TCLKI) or output clock pin (TLCLK, RCLKO, or TCLKO) for
its clock pin and meet the AC timing specifications as long as the clock signal is valid for the mode the part is in.
The clock select bit for the transmit line IO signal group PORT.CR3.TLTS selects the correct input or output clock
timing.
SIGNAL
SIGNAL
RCLKO
TCLKO
Rx LIU CLOCK
identifies the source of the output signal RCLKO based on certain variables and register bits.
shows the source of the RCLKO signals.
PORT.CR3
PORT.CR3
RLCLK
LOOPT
LOOPT
1
1
0
0
0
0
1
1
0
0
0
0
0
TCLKO
PLB disabled
PLB disabled
(PORT.CR4)
DLB (1XX) or ALB (001)
PLB (011)
PLB (011)
LBM[2:0]
DLB disabled & ALB
LIUEN
XXX
XXX
0
1
DLB disabled
(PORT.CR4)
DLB (1XX)
DLB (1XX)
LBM[2:0]
disabled
XXX
XXX
DIAGNOSTIC
LOOPBACK
LIUEN
0
1
X
X
1
0
1
0
59 of 230
(PORT.CR3)
LIUEN
CLADC
X
1
0
1
0
0
1
X
X
X
X
0
1
RCLKO
(PORT.CR3)
CLADC
DS3170 DS3/E3 Single-Chip Transceiver
X
X
X
X
0
1
1
SOURCE
RLCLK
RLCLK
Rx LIU
Rx LIU
TCLKI
CLAD
SOURCE
RLCLK
RLCLK
Rx LIU
Rx LIU
TCLKI
TCLKI
CLAD
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